Grating.



A. DARROCH.

GRATING.

APPLICATION FILED AUG.3. 1915.

PatentedSept. 5,1916.

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GRATING.

APPLlCATlON FILED AUG-3, l9l5.

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Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed August 3, 1915. Serial No. 43,394.

To all whom it may concern:

Be it known that I, ANcUs DARROCH, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and. State of New York, have invented a new and Improved; Grating, of which the following is a full, clear, and exact description.

The invention relates to gratings, such as shown and described in the Letters Patent of the United States, No. 1,150,746, granted to moon August 17,1915.

'One object of the present invention. is to provide a new and improved grating for use in the roofs of subways, pavements, buildings and other structures, and arranged to readily take care of rain water, debris and the like, passing into the space below the grating and to illuminate and ventilate such space.

Another object is to permit of removing the sections of the grating from the top to gain access to-the space below in case of a conflagration or an accident or for any other causerequiring opening of the grating.

In order to accomplish the desired result,

. use is made of spaced grate bars or treads,

its

and combined gutter and ventilating members arranged below the said grate bars and intermediate adjacent grate bars, the said gutter and ventilating members being mounted to swing to act as ventilating slats or dampers and to receive rain water passing down the adjacent a grate bars. Use is also made of side channels into which discharge the ends of the said gutter and ventilating members and on which channels are adapted to rest said members. Use is further made of a grate bar recessed at the top, and a filling of concrete in the recessed top and flush with the top edges of the grate bar. v

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a cross section of the grating on the line 1-1 of Fig. 2, part of one of the combination gutter and ventilating members being broken out; Fig. 2 is a longi tudinal section of the same; Fig. 3 is a plan' view of the same with parts removed; and Fig. 4 is a perspective view of a combined gutter, ventilating and light-refracting member.

The. grating is preferably made in sections, each provided with a series of spaced grate bars or treads A fastened by rivets, bolts or other fastening means B to side members C of an open frame C resting on a support preferably formed in a longitudinal direction by pairs of channel irons D having their free edges abutting, as plainly indicated in Fig. 1. The channel irons D rest on I-beams E extending lengthwise of the space covered by the grating. The transverse support for the transverse members C of each frame C is formed by channel irons F and angle irons F secured to the upper ends of the channel irons F. The channel irons F rest on transverse channel irons G supported bythe I-beams E.

Immediately below the grate bars or treads A are arranged combined gutter and ventilating members H in the form of flat .plates having theirends turned up to provide gutters H, the said members H extending across the space between adjacent grate bars or treads A so that any rain water that passes between adjacent grate bars or treads A falls onto themember H and passes down into the gutter portion H. The gutter portions H are adapted to rest at their ends on channels I having upwardly extending side members I attached to the supporting beams D previously mentioned. The ends of the gutter members H are provided at the bottom with cut-out portions H (see Fig. 1) opening into the channels I so that rain water passing into the gutter portions H of the members H can readily flow into the channels I and along the same to a suitable place of discharge. By reference to Fig. 2, it will be noticed that the members H,overlap one the other but the ends are spaced apart so as to form ventilating spaces to allow foul air in the space be-' crease the space between adjacent members,

as will be readily understood by reference to full and dotted line positions of the members shown in Fig. 2. a

In order to impart a swinging motion to the members H, use may be made of a device such as. shown, for instance, in the Letters Patent of the United States, No. 1,092,094, granted to me on March 31, 1914, but I prefer the use of a light chain J connected with eyes H attached to the under side of the members H at the gutter portions H, the said chain passing through openings F formed in the supporting beam E The ends of the chain J extend within reach of an operator to permit of swinging the members H upward into fully closed or partly closed position on exerting a pull on one end of the chain, the other end of which is attached to asuitable part arranged in the space below the grating. -Normally, however, the members H rest on the channels I, as previously stated. v

' In order to fasten the frames C carrying the tI'GQdS'TA in position on the supporting beams Dfuse is made of bolts K held on the topof the supporting beams D and extending betweenthe side members C of adjacent, frames C. The bolts K are provided with washers K" resting on the top of the adjacent side members C of the frame C, and the washer is engaged by the nut K which when removed permits convenient lifting out of any one of the grating sections, after which the members H can be lifted out, owing to the open bearings I engaged by the ends of the pivots H Thus access is readily had to the space below the grating.

Each of the grate bars or treads A is, formed of a shallow channel iron or recess on the top for the reception of a filling of concrete A flush with the top edges of the channel iron. By providing each grate bar or tread with a concrete face a firm foothold is provided to prevent pedestrians walking over the grating from slipping. The concrete bars of a section of the grating are preferably connected with each other by longitudinally connecting bars A to reinforce the grate bars or treads.

In case it is desired to admit light to the space below the grating use is made of a member H having a panel H of glass or other diaphanous material inserted in a skeleton frame 'H terminating at its lower end in a gutter portion H and provided with a pivot H for the member H to swing on in the open bearings P, as previously exlained. Itwill be noticed that this member II takes care of the rain water and at the same timepermits refraction of light down into space below the grating.

From the foregoing it will be seen that provision is made for convenient removal of any one of the grating sections in case of conflagration, accident or the like in the space below the grating and requiring opening of the grating for the purpose of extinguishing the flames or rescue work. It will also be noticed that ample provision is made to take care of rain water or debris that may pass between the spaced grate bars or treads A, and the space below the grating can be readily ventilated and light admitted to the grate bars mounted on the said supports,

and combined gutter and ventilating mem bers arranged below the said grate bars and extending acrossthe spaces between the said \grate bars to catch rain water, debris and other matter passing between adjacent grate bars, the said members being mounted to swing up and down and overlapping each other.

3. A grating, comprising supports, spaced grate bars mounted on the said supports, combined gutter and ventilating members arranged below the said grate bars and extending across the spaces between the said grate bars to catch rain water, debris and other matter passing between adjacent grate bars, the said members being mounted to swing up and down and overlapping each other, and fixed side channels into which discharge the ends of the said members.

4 4. A grating, comprising supports, spaced grate bars mounted on the said supports, combined gutter and ventilating members arranged below the said grate bars and ex tending across the spaces between the said grate bars tocatch rain water, debris and other matter passing between adjacent grate bars, the said members being mounted to swing up and down and overlapping each other, and fixed side channels into which discharge the ends of the said members, the said ends normally resting on the said side channels.

5. A grating, comprising supports, spaced grate bars mounted on the said supports, combined gutter and ventilating members arranged below the said grate bars and extending across the spaces between the said grate bars to catch rain water, debris and other matter passing between adjacent grate bars, the said members being mounted to swing up and down and overlapping each other, fixed side channels into which discharge the ends of the said members, the said ends normally resting on the said side channels, and manually controlled means connected with the said members to swing {be same into closed or partly closed posi- 1on. v

6. A grating, comprising spaced supports, a grate made in sections held removable on the top of the said supports,each section being-formed ofan open frame resting on the said supports, spaced grate bars attached to the said frame and bolts connecting the framegto the supports, the bolts being intermediate the grate bars, channels held on the support below the frame, and combined gutter and ventilating members having pivots removably journaled on the said channels, each of the said members extending below the grate bars and across the space between adjacent grate bars.

7. A grating, comprising spaced supports, a grate made in sections held removable on the top of the said supports, each section being formed of an open frame resting on the said supports, spaced grate bars attached to the said frame and bolts connecting the frame to the supports, the bolts being intermediate the grate bars, channels held on the said support below the frame, and combinedgutter and ventilating members having pivots'removably journaled on the said channels, each of the said members extending below the grate bars and across the space between adjacent grate bars, the ends of the said members discharging into the said gutters and being adapted to rest thereon.

ing formed of an open frame resting on the 7 said supports, spaced grate bars attached to the said frame and bolts connecting the frame to the supports, the bolts being intermediate the grate bars, channels held on the support below the frame, the sides of the channels having open bearings, and combined gutter and ventilating members having pivots engaging the said open bearings, each of the said gutter and ventilating members extending below the grate bars and across the space between adjacent grate bars, each gutter and ventilating member being in the form of a flat inclined body bent up at the lower edge to form the trough part.

9. A grating comprising supports, spaced grate bars mounted on'the said supports,

and combined gutter and ventilating members mounted to swing up and down and overlap each other below said gratebars, each gutter and ventilating membeflbeing in the form of a flat inclined diaphanous portion and an opaque bent up lower edge portion to form the gutter proper.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANGUS DARRQOH. r Witnesses:

A. H. DAVIS, PHILIP D. Ronmmns. 

